Walter, you describe the lights as ''stacked'' but don''t describe the arcs they illuminate. Are the R & G ligts sector (10 point) lights that show on the port & stbd sides respectively? Is the W light a 32 point/360 degree light? A 20 point light?

It sounds like a wierd set-up but my understanding of the nav light rules suggest that, in one case, your lights could be in compliance. Need to know what arcs they illuminate...